Paving joint and method of making the same



Sept. 15, 1931. E. L. BENEDICT ET AL 18,133

PAVING JOINT AND METHOD OF MAKING THE SAME iginal Filed April 8, 1920 Zaizuardl. %b@rZZ. 0205 Reiuued Sept. 15, 1931 UNITED STATES PATENT OFFICE EDWARD L. BENEDICT AND ROBERT L. GLOSE, OF PITTSBURGH, PENNSYLVANIA, AS- SIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO THE PHILIP CAREY MANU- FACTURING COMPANY, A CORPORATION OF OHIO PAVING JOINT AND METHOD OF MAKING THE SAME Original No. 1,608,509, dated October 19, 1926, Serial No. 872,145, flled Aprfl 8,1820. Application for reiuue filed September 17, 1927. Serial No. 220,227.

The present invention relates to paving joint strips of compressible and elastic character which are adapted for use in paving structures to separate the rigid elements.

Our invention has relation to paving joints. One object of the invention is to provide a joint which is longitudinally oorrugated, in such a manner as to interlock with the ad'acent paving material at the sides of the joint, thereb acting to prevent the relative movement 0 such material in a vertical direction adjacent to the joint.

A further object of the invention is to provide a pavin joint which is constructed of materials which render the joint permanently resilient, so that it will act efficiently as an expansion and contraction joint.

A still further object of the invention is to provide a joint which can be performed before being placed in the paving. Other objects and advantages of our invention will hereinafter ap ear.

Although with respect to that feature of our invention which has for its object the provision of a corrugated interlocking joint, the joint may be formed of any usual or suitable material, we prefer to construct a joint of fibrous material such as wood ulp, and to shape the 'oint from a sheet 0 this material and to t en impregnate it with a suitable filler which will remain ermanent- 1y resilient or semi-resilient. s halt or creosote, for instance, may be use for this filler, these substances not only being waterproof but capable of permanently retaining their plasticity or resilience.

For a better understanding of the invention reference may be made to the drawings, in which Fi ures 1 and 2 are sectional views showing ifierent forms of our improved oint;

igure 3 is a perspective view of still another form; and a 0 Figure 4 is a detail sectional view illustrating the form of material which we pre- 'fer to employ in the manufacture of the joint.

In making a joint from this material, the strip 2, which is to form the joint may be cut from a sheet of the fibrous material of the character indicated at 3 in Figure 4. If a straight or non-corrugated joint is to be used, as shown in Figure 4, this strip is then impregnated in any well known manner with the asphalt, creosote or other similar substance, and is then ready for use. If a corrugated joint is to be employed, as shown at 4 in Figure 2, the cut strip preferably before impregnating, is longitu inally corrugated,

as shown in Figures 2 and 3, although the corrugations may take various forms. After being corrugated, the formed strip is then impregnated with the asphalt, creosote or other material, and is then ready for use.

In Figure 2, we have also shown the strip as provided with a backing plate 5, at one side, of steel or other material, this plate preferably terminating at its u per edge somewhat below the surface of the avement. The form of strip shown in this gure may consist of the material above described, or it may consist of any other suitable material. A backing plate of this character has been found to very effectively cooperate with the fibrous material and act as a reinforce therefor adding both strength and resiliency to the joint.

The corrugations, as will be readily understood, act to form an interlock which will effectively prevent any relative vertical movement of the paving bodies adjacent to the 'oint. Where the backing plate is utilized the strength of the interlock is increased.

By the use of material, such as above described, we provide a joint which will rmanently maintain its elastic or resilient character, and which can be completel preformed before it is placed in position in the aving. The fibrous material can be shi ped in carload lots to the point of use, wit iout crating and the strips constituting the joints,

can be out and formed at or adjacent to the We claim:

1. The herein described method of making paging joints, which consists in forming a y or strip of fibrous material of proper shape to constitute the desired joint, and then impregnating the same with a filler of permanently elastic character, substantially as described.

2. The herein described method of making pavin joints, which consists in providing a b y or strip of fibrous material of proper shape to constitute the desired joint, corrugating the said strip longitudinall thereof, and then im regnating the same wit awaterproof filler o permanent elastic character, substantially as described.

3. An expansion and contraction joint for concrete aving comprising a thick stifl' corrugated dheet oi fibrous material impregnated with a permanently resilient" filler and adapted to contact directly with the concrete paving, substantially throughout its height and on both its sides.

4. An expansion joint comprising a compressible body of bituminous material havmg an exterior metallic reinforcement terminating short of the top of said body, the whole arranged to form a joint having along its longitudinal center outwardly extending portions on one side and corresponding inwardly extending portions on the opposite side.

5. An expansion and contraction joint for concrete aving comprising a thick stifi' corrugated s eet oi fibrous material im regnated with a permanently resilient ler and adapted to contact directly with the concrete paving with at least its upper portions substantially as described.

6. A aving joint strip having a resilient board-1i e form retaining body of the form and size of the strip consisting of fibrous material, the faces 0 said body impregnated with a waterproof material.

7. A aving joint strip having a resilient board-1i e form retaining body of the form and size of the strip, consisting of fibrous material, said body impregnated with a waterproof material.

8. A pavingjoint" strip having a resilient board-like form retaining body of the form and size of the strip, consisting of fibrous material, said body impregnated with asphalt.

9. A paving joint strip having a resilient board-like form retaining body of the form and size of the strip, consisting of fibrous vegetable material, said body impregnated with a. waterproof material and a reinforcement for said body.

10. In a pavement, adjacent paving bodies separated to provide a space between said bodies, a strip for said space, consisting of a preformed board-like body of fibrous material of the size and form of the space between teria EDWARD L. BENEDICT. ROBERT L. GLOSE.

DISCLAIMER Re 18,188.Edward L. Benedict and Robert L. Glose. Pittsburgh, Pa.

JOINT AND METHOD OF MAKING THE SAME. 1931. Disclaimer filed June 24, 1940, by the as PAVING Patent dated September 15,

signee, Construction Materials Patents, Inc. Hereby enters this disclaimer of claims 7 and 8 in said specification of said reissue Letters Patent.

[Ofiicial Gazette July 16, 1.940.] 

